Water being an indispensable element for sustenance should be conserved. Sources of water have soon begun to deplete at an alarming rate.
An increase in population and depletion of water resources calls for greater trouble in the future, we are already experiencing a shortage of this life-saving element. Hence, there is a greater need to treat wastewater. You need to get the best water conserving solutions.
The other need for treating this life-saving element is to avert any damages the contaminated water may cause. For example, industrial waste must be treated before it is discharged out as it may affect other living creatures on earth. Some of it may have chemicals and poisonous elements which may contaminate precious water sources which are naturally found on earth.
By treating them, we can eradicate chemical, physical, and biological contaminants from wastewater and make it safe for usage.
Industrial waste and fertilizers used in the agricultural field if seeped into marine habitats such as lakes and rivers will cause a lot of problems. Hence they must be treated before discharging them out.
If not it leads to the growth of algae which consumes the oxygen in the water leaving behind nothing for the rest of the living creatures. It may lead to the death of other marine creatures. It further produces toxins that pose risk to life. It may cause problems to living creatures that may feed on them such as fish, and other aquatic creatures.